SAA2503 查看數據表（PDF） - Philips Electronics
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SAA2503 Datasheet PDF : 20 Pages
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Philips Semiconductors
MPEG2 audio decoder
Objective specification
SAA2503
SYMBOL
VCCP
EXTAL
SCL
GNDS1
SDA
RESET
MODA
MODB
MODC
VCCS1
HA0
HA2
HREQ
GNDS2
SDO2
SDO1
SDO0
VCCS2
SCKT
WST
SCKR
GNDQ3
VCCQ3
GNDS3
WSR
SDI1
SDI0
DSO
DSI/OS0
DSCK/OS1
n.c.
n.c.
n.c.
n.c.
DR
SDB
MUTE
GNDD1
BUSY
I2CEN
VCCD1
1997 Jul 02
PIN
I/O
DESCRIPTION
41 supply supply voltage for the Phase Locked Loop (PLL)
42
I external clock/crystal Input
43
I I2C-bus serial clock
44
GND isolated ground 1 for the SHI I/O drivers
45
I/O I2C-bus data and acknowledge
46
I hardware reset for the microcontroller
47
I mode select A
48
I mode select B
49
I mode select C
50 supply isolated power supply 1 for the SHI I/O drivers
51
I/O I2C-bus slave address 0
52
I I2C-bus slave address 2
53
I host request
54
GND isolated ground 2 for the SHI I/O drivers
55
O not used
56
O not used
57
O serial data output 0
58 supply isolated power supply 2 for the SHI I/O drivers
59
O transmit serial clock
60
O transmit word select
61
I receive serial clock
62
GND ground 3 dedicated for the PLL
63 supply isolated power supply 3 for some sections of the internal chip logic
64
GND isolated ground 3 for the SHI I/O drivers
65
I receive word select
66
I serial data input 1
67
I not used
68
O not used
69
O not used
70
O not used
71
− not connected
72
− not connected
73
− not connected
74
− not connected
75
I not used
76
I/O general purpose I/O
77
I/O general purpose I/O
78
GND ground 1 for some sections of internal logic
79
I/O general purpose I/O
80
I/O general purpose I/O
81 supply isolated power supply 1 for some sections of the internal chip logic
5
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